Présentation de 064.jps

25 setxunit
7.5 setborder
90 setangle_repere
-10 10 setxrange
-10 10 setyrange
1 1 settkstep
.5 .5 setsubtkstep
2 2 setmkstep
ticks
subticks
marks
traceaxes
axesarrow
1.75 setlinewidth
continu
bleu
/X {settvar
#rpn#   4 * (Cos (t))^3
} def
/Y {settvar
#rpn#   4 * (Sin (t))^3
} def
  0  pi 2 mul {X} {Y} Courbeparam
rouge
/X {settvar
#rpn#   4 * (Cos (t))^3+12*Cos(t)*(Sin(t))^2
} def
/Y {settvar
#rpn#   4 * (Sin (t))^3+12*Sin(t)*(Cos(t))^2
} def
  0  pi 2 mul {X} {Y} Courbeparam